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July 24, 2014

Search: Magnesium reacts with oxygen to form magnesium oxide. If 0.81 grams of magnesium oxide are formed, how many grams of oxygen reacted?

Number of results: 16,130

chemistry
When magnesium is heated in air, it reacts with oxygen to form magnesium oxide. 2Mg + O2 --> 2MgO If the mass of the magnesium increases by 0.335 g, how many grams of magnesium reacted? A. 0.882 B. 0.441 C. 0.509 D. 1.02 E. Not enough Info
July 5, 2010 by Kristen

Chemistry
Magnesium reacts with oxygen to form magnesium oxide according to the following equation: 2Mg(s) + O2(g) ==> 2MGO(s) If 0.81 grams of magnesium oxide are formed, how many grams of oxygen reacted?
May 5, 2010 by Danny

Stiochiometry
Equation 2Mg+O2= 2MgO Lab data: Magnesium ribbon= .04 grams Magnesium Oxide= .09 2. Using the initial mass of magnesium, calculate the moles of oxygen and then moles of magnesium oxide produced. What is the mole ratio of the reactants? 3. Calculate the mass of magnesium oxide ...
February 26, 2009 by Emily

Chem 2
If we burn a strip of magnesium in air, there will be two main products, magnesium oxide and magnesium nitride. If we then treat that mixture with water, the nitride ion is converted to ammonia. After boiling away the water and ammonia, we would be left with only magnesium ...
January 13, 2013 by Maggie

Chemistry
When 24g of Magnesium reacts with oxygen gas the only product is magnesium oxide. If 40g magnesuim is produced how much oxygen was consumed?
March 22, 2014 by Loren

chemistry
When magnesium burns in air, it reacts with oxygen and nitrogen, forming magnesium oxide and magnesium nitride. If 20.0L of air is available for this reaction, what mass of each compound can be formed? (Remember air is about 80% Nitrogen and 20% Oxygen)
March 7, 2013 by Chase

chemistry
A 20.2g chunk of magnesium metal reacts with 13.7 g of oxygen gas to make magnesium oxide. Write the balance equation.
February 9, 2011 by Kim

Chemistry
Magnesium forms both an oxide and a nitride when burned in air. Discuss the formation of magnesium oxide and magnesium nitride when magnesium atoms react with oxygen and nitrogen atoms.
November 1, 2010 by Valerie Ayala

Chemistry
A 4.5 g piece of magnesium ribbon undergoes combustion in air to produce a mixture of two ionic solids, MgO and Mg3N2. Water is added to this mixture. It reacts with the magnesium oxide to form 9.97 g of magnesium hydroxide. Assume all reactions go to completion. A) write a ...
October 13, 2010 by Doris

chemistry
Write the equation for the combination of magnesium and oxygen to form magnesium oxide, MgO.
October 11, 2013 by Anonymous

Chemistry
Assume that some of the magnesium nitride is not completely converted to magnesium hydroxide and subsequently to magnesium oxide. Will your empirical formula be too high in magnesium or too high in oxygen? Please show any calculations you used to determine your answer.
February 15, 2014 by Liliah

chem
Magnesium burns in air to produce magnesium oxide, MgO, and magnesium nitride, Mg3N2. Magnesium nitride reacts with water to give ammonia. Mg3N2(s) + 6 H2O(l) → 3 Mg(OH)2(s) + 2 NH3(g) What volume of ammonia gas at 24°C and 753 mmHg will be produced from 4.46 g of ...
March 6, 2011 by D

chem
How many grams of magnesium oxide are formed when 13.5 L of oxygen gas, measured at STP, completely reacts with magnesium metal according to the following reaction? i got .496 g but i know that like way off
February 17, 2011 by hannah

chemistry
A piece of magnesium weighing 48 grams is burned in air n 80 gram of magnesium oxide is formed. what mass of oxygen combined with the magnesium is in the reaction?
March 23, 2014 by Rodney

Chemistry
Solid magnesium reacts with oxygen gas to produce 568g of solid magnesium oxide.
January 16, 2013 by Emmaly

chem-repost
How many grams of magnesium oxide are formed when 13.5 L of oxygen gas, measured at STP, completely reacts with magnesium metal according to the following reaction? i got .496 g but i know that like way off
February 17, 2011 by hannah

Chemistry
Assume that some of the magnesium nitride is not completely converted to magnesium hydroxide and subsequently to magnesium oxide. Will your empirical formula be too high in magnesium or too high in oxygen? Please show any calculations you used to determine your answer. Where ...
February 14, 2014 by GC

Chem Simple question
Magnesium metal burns in oxygen to form magnesium oxide, MgO. (a) Write a balanced equation for the reaction Why is it 2Mg+O2->2MgO and not Mg+O->MgO
September 29, 2013 by Julie

science
Write balanced chemical equations (using symbols) for the following reactions 1.hydrochloric acid reacts with magnesium to form magnesium chloride and hydrogen 2.Nitrogen monoxide burns in oxygen to form nitrogen dioxide
May 21, 2014 by Lesedi

chemistry
when 18.66 g of magnesium react with 22.28g of oxygen, 30.94g of megnesium oxdie forms. If all the magnesium reacts, how many grams of oxygen remain un-reacted?
November 20, 2007 by jason

Chemistry
I had to perform an experiment using a coffee-cup calorimeter to determine the enthalpies of two seperate reactions. For part 1 we worked with magnesium metal, and magnesium oxide. Data was collected and now I need to find the q, heat transferred for both magnesium and ...
February 13, 2012 by Hannah

Chemistry
Calcium carbonate is insoluble in water. Name two substances that when mixed in solution, will form a precipitate of calcium carbonate. Explain why is it the two substances that you have chosen.  why does magnesium chloride cannot be prepared in the lab by the reaction of ...
September 6, 2011 by StuartKess

chemistry
.46 gm of magnesium produces .7667 gm of magnesium oxide,.3 gm of magnesium liberates 280 ml of hydrogen at NTP from an acid and 1.26 gm of water is produce by combination of 1.12 gm of oxygen with hydrogen which law of chemical combination can be illustrated with these data
October 29, 2011 by salina

Chemistry
magnesium powder reacts with steam to form magnesium hydroxide and hydrogen gas. What is the pecentage yield of 10.1g Mg reacts with an excess of water abnd 21.0g Mg 9g (OH)2 is recovered? If 24g Mg is used the percentage yield is 95% how many gramns of magnesium hydroxide ...
January 10, 2010 by Brooke

chemistry
how would the loss of magnesium oxide effect the ratio of magnesium to oxygen? and could you please show me the calculations ,, and thank you
January 22, 2009 by wifaj

CHEMISTRY! NEED HELP FAST!
if 250 ml of oxygen at stp are consumed when magnesium burns, how many grams of magnesium oxide? [Mg(s) + O2(g) ---> MgO(s)]
October 29, 2012 by Curry

Chemistry
Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?
November 8, 2010 by Tarkan

Chemistry grd 11
Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?
November 8, 2010 by Tarkan

Chemistry grd 11
Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?
November 8, 2010 by Tarkan

chem
What is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 42.8 g of magnesium metal? The percent yield of MgO(s)for this reaction is 81.7%. 2Mg(s) . CO2(g) y 2MgO(s) . C(s)
June 1, 2008 by Anonymous

Chemistry
A 3.214-g sample of magnesium reacts with 8.416g of bromine. The only product is magnesium bromide. If 1.934g of magnesium is left unreacted, how much magnesium bromide is formed? -Sorry, I've completely forgot how to do this..please help
January 28, 2011 by LHale

Chemistry
A sample of magnesium with a mass of 1.00 g is burned in oxygen to produce an oxide with a mass of 1.66 g. What is the empirical formula of the magnesium oxide produced? I know the answer is MgO. What are the steps to get that answer?
October 10, 2010 by Doris

Chemistry (Stoichiometry)
Magnesium powder reacts with steam to form magnesium hydroxide and hydrogen gas. a) Write a balanced chemical equation for this reaction. b) What is the percentage yield if 10.1g Mg reacts with an excess of water and 21.0g Mg(OH)2 is recovered? c) If 24g Mg is used and the ...
March 2, 2011 by Nick

Chemistry
You are going to be provided with 1 0.50 g sample of magnesium oxide. Treatment of this sample with hydrochloric acid (HCl) will take all of the MAGNESIUM in the oxide and change it into magnesium chloride, MgCl2 You will add 100 ml of 1.0 M HCl to the 0.50 g of magnesium ...
October 1, 2008 by JC

Chemistry
Hydrochloric acid reacts with Magnesium to form Magnesium Chloride and Hydrogen gas. deltaH= -442kJ If 15mL of 1.0M HCl reacts with .3g of Mg, how many L of H2 are produced? How much heat is produced?
December 8, 2010 by Taylor

chemistry
When 16.3 g of magnesiumm reacts with 4.52 g of oxygen, how many grams of magnesium oxide will be performed? Identify the limiting and excess reactants.
February 15, 2012 by Kayla

AP Chemistry
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 5.0 M HCI is required to react completely with 3.00 g of magnesium?
November 8, 2009 by Angel

Chemistry
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 9.0 M HCl is required to react completely with 5.00 g of magnesium?
October 19, 2010 by Mattie

chemistry
Magnesium oxide forms from magnesium metal and oxygen gas. Write a word equation and an unblanced formula equation. Include all of the appropriate notations.
February 3, 2009 by kate

Chemistry
Suppose you tried to combine 42 grams of magnesium with 45 grams of oxygen. Which of the two substances would be left after the reaction? How much magnesium oxide will be formed?
October 3, 2010 by Chris

chemistry
how would the loss of magnesium oxide smoke affect the empirical formula for magnesium oxide? show me the calculations please
January 22, 2009 by wifaj

chemistry
How many grams of magnesium oxide are produced when 40 grams of oxygen react with magnesium
May 8, 2011 by jordan

College Chemistry
A mixture of the compounds sodium oxide and magnesium chloride contains 2.4182 g of sodium oxide and is 89.3 % by mass magnesium chloride. The sodium oxide is 74.200 % by mass sodium. Calculate the moles of oxygen in the mixture. Thanks in advance.
April 4, 2012 by Lance

Chemistry balancing equations
Translate each of the following reactions into complete balanced chemical equations using international symbols & include states of matter at SATP. Assume pure states of matter unless otherwise indicated. I really need help with this stuff please. 1. The reaction of magnesium ...
December 2, 2011 by Fizzylicous

Chemistry
1) When calcium is reacted with cold water, the equation is as follows: - Ca(s) + H2O(l) -->Ca(OH)2(aq) + H2(g) Isn't Ca(OH)2 insoluble? Why is the state symbol aqueous? When I conducted the experiment in a test tube with cold water, I got a white suspension (precipitate). ...
January 31, 2009 by candy

Chemistry
Write and balance equations for the following reactions. A)Iron metal and Chlorine gas react to form solid iron(III) chloride. B)Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas. C)Solid magnesium reacts with aqueous silver nitrate to ...
February 28, 2010 by Jack

Chemistry
Magnesium is found in the ore,magnesite, MgCO3. The ore decomposes when heated to form magnesium oxide and carbon dioxide. Write the balanced equation for this reaction.
April 24, 2011 by Tom

chemistry
Suppose you tried to combine 42 grams of magnesium with 42 grams of oxygen. Which of the two substances would have some left after the reaction and how much magnesium oxide would be formed?
March 3, 2010 by tony

Chemistry
When 2 mol of solid magnesium (Mg) combines with 1 mole of oxygen gas (O2), 2 mol of solid magnesium oxide (MgO) is formed and 1204kJ of heat is released. Write the thermochemical equation for this combustion reaction.
May 19, 2010 by Kim

chemistry
having trouble posting but will try again. translate the following verbal description into scientific notation. magnesium ribbon is burned in pure oxygen gas. thanks The reaction forms magnesium oxide (MgO). Se if you can write the balanced reaction.
January 19, 2007 by key

Chemistry
Determine the empirical formula of magnesium oxide. Weight of magnesium, 0.16g, weight of magnesium, 0.24. Please use 24.31g/mol for Mg and 16.00g/mol for O
November 17, 2013 by Rayman

Chemistry
Determine the empirical formula of magnesium oxide. Weight of magnesium, 0.16g, weight of magnesium, 0.24. Please use 24.31g/mol for Mg and 16.00g/mol for O
November 17, 2013 by Rayman

Chem
Please tell me if these are right. How many grams are needed to obtain 1.5 moles of magnesium oxide? I got 60grams is this right? Write a balanced equation for the reaction of the magnesium and the oxygen including their physical states. I got 2Mg=Mg2+O2? Thank You!
October 23, 2010 by Jason

Chemistry
A mixture of the compounds magnesium oxide and calcium sulfide contains 21.6999 g of magnesium oxide and is 51.3 % by mass magnesium oxide. The compound calcium sulfide is 44.400 % by mass sulfur. Calculate the moles of sulfur in the mixture. I'm not sure what I did wrong. My ...
April 4, 2012 by Lance

science
these are my homework questions can you answer any???there are 4 1 A pupil placed some magnesium in a gas jar of oxygen How could the rate of reaction between these substances be increased 2 Complete the word equation for the reation magnesium and oxygen 3 How does the colour ...
November 29, 2006 by lauren

Chemistry
Magnesium burns in air to produce magnesium oxide MgO and magnesium nitride Mg3N2. Magnesium nitride reacts with water to give ammonia. What volume of ammonia gas at 24 degrees C and 753 mmHg will be produced from 4.56 g of magnesium nitride. P= 753 mmHg (1 atm/ 760mmHg)= .991...
October 23, 2007 by Lauren

Chemistry
Can you tell me if these are right please? When 2.50g of copper reacts with oxygen the copper oxide product has a mass of 2.81g. What is the simplest formula of the copper oxide. I got Cu2O (copper (I) oxide). Aluminum and oxygen gas react to produce aluminum oxide. A.) write ...
October 19, 2010 by Jason

Chemistry - Stoichiometry
16.2g of magnesium reacts exactly with 25.3g of fluorine to produce magnesium fluoride, the only product. How many grams of magnesium fluoride could be produced from the reaction of 10.5g of magnesium with excess fluorine. This is simple if you use ratios... You know that 16.2...
August 25, 2005 by Kevin

chemistry
Magnesium reacts with HCl to produce magnesium chloride and hydrogen gas. Mg(s)+2HCl(aq)->MgCl2(aq)+H2(g). What is the molarity of the HCl solution if 330 ml of the HCl solution reacts with magnesium to produce 7.40 L of H2 gas measured at STP?
October 9, 2010 by Dana

chemistry
7. Write the balanced equation for the equation for the reaction of magnesium with HCl. What is the mole ratio between magnesium and magnesium chloride will be produced? If 2.5g of magnesium react, how many moles of magnesium chloride will be produced? How many grams of ...
January 19, 2010 by pj

Chemistry
According to his prelaboratory theoretical yield calculations, a student's experiment should have produced 1.44 g of magnesium oxide. When he weighed his product after reaction, only 1.23 g of magnesium oxide was present. what is the student's percent yield?
February 16, 2009 by Sia

chemistry
if not all the magnesium reacts, will the reported magnesium to oxigen ratio be too high or too low?
February 12, 2012 by bailey

Chemistry
Magnesium metal reacts with hydrochloric acid to form magnesium chloride and hydrogen gas. Suppose we react an excess of magnesium metal with 13.2 mL of a 3.00 M solution of hydrochloric acid and collect all of the hydrogen in a balloon at 25oC and 1.00 atm. What is the ...
May 5, 2011 by Priya

chemistry
How do I write the skeleton equation representing the heating o f magnesium carbonate to produce solid magnesium oxide and carbon dioxide gas?
March 15, 2010 by Brittany

grade 12 chemistry
what amount of magnesium chloride will be produced when 250 ml of 8.0 mol/Hcl reacts with excess magnesium
May 5, 2010 by Amy

chemistry
A sample being given as a laboratory unknown is a mixture of calcium carbonate and magnesium carbonate. Both substances decompose to form calcium oxide and magnesium oxide, respectively, when heated at a high temperature for a prolonged period. An unknown sample weighing 5.424...
October 6, 2012 by anonymousokm

science
How do you calculate the atomic mass of magnesium? 79% magnesium-24, 10% magnesium-25, 11% magnesium-26
March 14, 2011 by katie

Chemistry
How many liters of hydrogen gas can be made from 65.5g of magnesium at STP? Magnesium reacts to sulfric acid according to this equation... Mg+H2SO4-->MgSO4+H2
March 5, 2012 by Cynthia

chem
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 1.0 M HCl is required to react completely with 4.00 g of magnesium i did 4.00g x (mol/24.31 g Mg) x (2 mol HCl/1 mol Mg) x (L/!.0 mol HCl) = .329 L why ...
March 26, 2009 by Anon

Chemistry
Write skeleton equations for these reactions. a. butane(l) + oxygen (g) --> carbon dioxide(g) + water(l). b. aluminum carbonate(s)--> aluminum oxide(s) + carbon dioxide(g) c. silver nitrate(aq) + sodium sulfide(aq) --> silver sulfide(s) + sodium nitrate(aq) d. iron(s...
November 16, 2010 by Lily

Chemistry
Write skeleton equations for these reactions. a. butane(l) + oxygen (g) --> carbon dioxide(g) + water(l). b. aluminum carbonate(s)--> aluminum oxide(s) + carbon dioxide(g) c. silver nitrate(aq) + sodium sulfide(aq) --> silver sulfide(s) + sodium nitrate(aq) d. iron(s...
November 16, 2010 by Lexie

science
what will be the law of conversion of a) 65 grams 70 grams b) magnesium + oxygen = magnesium oxide 45 grams ? grams 80 grams c) sodium hydroxide + hydrochoride acid 40 grams 36.5 grams sodium chloride + water ? grams 18 grams
August 4, 2012 by Magaly

Chemistry
in a chemical reaction, 5.2 grams of magnesium reacts with hydrogen nitrate. Calculate the amount of magnesium nitrate that is produced and the amount of hydrogen nitrate needed to react with the magnesium.
February 17, 2014 by Anonymous

Science
1. Rewrite the word equation as formula equation: Aluminum + copper (II) chloride= aluminum chloride + copper 2. What is not equal in these chemical formula equations: a.) magnesium + oxygen = magnesium oxide B.) water = hydrogen + oxygen c.)methanol +oxygen = carbon dioxide...
March 30, 2014 by Madhu

Chemistry
how could the amount of oxygen change the results in the synthesis of Magnesium oxide lab?
January 30, 2011 by Sadie

Chemistry
If oxygen is removed, the amount of magnesium oxide a.will increase b.will decrease c.will not change. and why? Thanks for your help
July 3, 2011 by Emma Rae

chemistry
provide with enough heat, magnesium and oxygen can undergo a synthesis reaction. how much magnesium is neede if 3.5kg of product is desired?
November 11, 2010 by tarkan

chemistry
Sulphuric acid (H2SO4) solution reacts with magnesium metal (Mg) to magnesium sulphate and hydrogen according to: H2SO4 + Mg → MgSO4 + H2 How many litres of 5.00 M sulphuric acid would be required to dissolve 20.00 g of magnesium and how many mol of hydrogen would be ...
June 22, 2014 by John

Chemistry
Phosphoric acid reacts with magnesium hydroxide to produce magnesium phosphate and water via the following reaction:H3PO4 + Mg(OH)2 -----> Mg3(PO4)2 + H2O.Balance the equation, then enter the coefficients
May 30, 2011 by Christy

Chemistry
Magnesium nitrate reacts with lithium sulfate in a double replacement reaction. You have 3.45 g of lithium sulfate and 275 mL of magnesium nitrate. Calculate the molarity of the Magnesium nitrate solution in the reaction.
February 21, 2012 by Bella

Chemistry
The burning of the magnesium becomes uncontrolled (it burn brightly. Oops! How will this procedural error affect the reported mole ratio of magnesium to oxygen in the analysis? Explain.
June 13, 2010 by Alex

Chemistry
Write the two chemical equations that describe the conversion of magnesium into magnesium oxide. 2Mg(s)+O2(g)->2MgO(s?) First off, would MgO be a solid or gas? And I have no idea what the 2nd equation could be.. Can anyone give me a hint?
October 13, 2009 by Anonymous

chemistry
Solid magnesium metal reacts with chlorine gas according to the following equation: Mg + Cl2 --> MgCl2 What mass of magnesium chloride is formed in the reaction between 7 g of Mg and 13.2 g of Cl2
September 15, 2010 by sarah

chemistry
Solid magnesium metal reacts with chlorine gas according to the following equation: Mg + Cl2 --> MgCl2 What mass of magnesium chloride is formed in the reaction between 7 g of Mg and 13.2 g of Cl2
September 17, 2010 by kellie

chemistry
Solid magnesium metal reacts with chlorine gas according to the following equation: Mg + Cl2 --> MgCl2 What mass of magnesium chloride is formed in the reaction between 7 g of Mg and 13.2 g of Cl2 is this correct 7 g+13.2 g = 20.2 grams ?
September 19, 2010 by kellie

Chemistry 111
calculate the number of moles of magnesium, chlorine, and oxygen atoms in 8.80 moles of magnesium perchlorate?
July 14, 2011 by kee

chemistry
2.241g sample of nickel reacts w oxygen to form 2.85g of the metal oxide. Calculate the empirical formula of the oxide?
March 31, 2008 by lizzie

chemistry
Solid silicon and solid magnesium chloride forms when silison tetrachloride gas reacts with magnesium metal. Write a word equations and an ublanced formula equation. Include all of the appropriate notations.
February 4, 2009 by kate

chemistry
Solid silicon and solid magnesium chloride forms when silison tetrachloride gas reacts with magnesium metal. Write a word equations and an ublanced formula equation. Include all of the appropriate notations.
February 4, 2009 by kate

chemistry
How would you solve this problem?... magnesium metal reacts rapidly in hot water. Predict the mass of pericipitate that will form if a 2.0g strip of magnesium reacts completely with water. *Use the 5-step method* *Answer: 4.8g* I dont know what the five step method is, and I ...
October 24, 2006 by B

Chemistry
I have to sort compounds into groups, separating them by if they are acidic, Ionic, or Covalent. Heres the list: Calcium Carbonate Sodium Hypochlorite Sodium Chloride Sodium Hydrogen Carbonate Acetic Acid Ammonium Hydroxide Silicon dioxide Magnesium Sulfate Carbon Dioxide ...
December 10, 2012 by Kaylee

science
Name the ionic compound form when a Magnesium reacts with chlorine?
July 14, 2014 by duane

chemistry
Magnesium reacts with iron(II) chloride according to the equation Mg(s) + FeCl2(aq) → MgCl2(aq) + Fe(s) a. Is magnesium oxidized or is it reduced? Magnesium is reduced. b. Is iron(II) ion oxidized or is it reduced? Iron(II) ion is oxidized . c. What is the oxidizing ...
February 11, 2012 by krystal

chemistry
in the reaction of magnesium metal with hydrochloric acid to produce magnesium chloride and hydrogen gas. If 4.59 mol of magnesium and 4.59 mol of hydrochloric acid are reacted, how many moles of magnesium chloride are produced ?
August 26, 2013 by tyler

chemistry
magnesium has 3 isotopes. Magnesium-24 has a percent abundance of 78.99%. Magnesium-26 has a percent of 11.01%. what is the percent abundance of magnesium-25? assume that there are no other magnesium isotopes. how do i do this please help
December 8, 2010 by monique n

SMK Duma
how to calculate ? when 21g of magnesium carbonate was heated , magnesium oxide produced . carbon dioxide also released. what is the volume of carbon dioxide released ?
June 5, 2012 by Nurlisa

Holy Nsmr
If 3 grams of magnesium consume 2 grams of oxygen while burning, how much oxide will be formed?
October 6, 2011 by Tommy

Chemistry
My question is very simple Why do metals when react with oxygen are called oxides like " magnesium oxide" whereas non metals reacting with oxygen become dioxides like "carbon dioxides" , note that the two react with oxygen which has 2 molecules
October 1, 2007 by Gap

Chemistry , please !
when 21g of magnesium carbonate was heated , magnesium oxide produced . carbon dioxide also released. what is the volume of carbon dioxide released ?
June 5, 2012 by Ikram

chem
A 2.241 g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide. Give the number of moles of each element to support you answer.
November 14, 2010 by sam

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